Apache Tajo (incubating)
Apache Tajo is a relational and distributed data warehouse system for Hadoop. Tajo is designed for low-latency and scalable ad-hoc queries, online aggregation and ETL on large-data sets by leveraging advanced database techniques. It supports SQL standards. Tajo uses HDFS as a primary storage layer and has its own query engine which allows direct control of distributed execution and data flow. As a result, Tajo has a variety of query evaluation strategies and more optimization opportunities. In addition, Tajo will have a native columnar execution and and its optimizer.
Official Apache Tajo Website: source code, bug-tracking, mailing-lists, etc.
Overview of Tajo
Architecture of Tajo
Logos of Tajo
User documentations is located at http://tajo.incubator.apache.org/docs/0.8.0/index.html.
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